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P. 17
. AgCl 1.0882 g 0.5662 g (٧)
، AgNO3
(Ag = 108 , Cl = 35.45) ﺍﻟﺤــﻞ
AgCl Cl
1 mol 1 mol
108 + 35.45 35.45
143.45 g 35.45 g
1.0882 g Xg
×X = 1.0882 35.45 = 0.269 g
143.45
Cl-
100 × =
47.5 % = 100 × 0.269 =
0.5662
BaCl2 ، 1.013 g ZnSO4 . XH2O (٨)
، 0.8223 g
(Zn = 65.5 , S = 32 , H = 1 , O = 16)
ﺍﻟﺤــﻞ
ZnSO4 + BaCl2
1 mol ZnCl2 + BaSO4
65.5 + 32 + ( 16 X 4 ) 1 mol
161.5 g
Xg 137 + 32 + ( 4 X 16 )
233 g
0.8223 g
١١٧
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